This time, it was more than just a war of words between Kenya Moore and Porsha Williams.

The dueling stars of The Real Housewives of Atlanta got into a brief physical altercation Thursday during the taping of the show's reunion episode, PEOPLE confirms.

"A fight broke out that had to be broken up," a source tells PEOPLE.

The source says that things got heated between the two when Porsha went after Kenya during an argument. "There was definitely some hair pulling, but no one was injured. It was broken up so quickly that nothing serious happened."

There has been considerable tension between Moore and Stewart since the two met at the start of season 5, which Moore said was "full of drama."

"I am in the middle of most of it, and probably the cause of most of it," she told PEOPLE ahead of that season's premiere. "I went through a lot of ups and downs."

This season, Moore and Stewart got into a spat over Stewart's failed marriage to former NFL quarterback Kordell Stewart. Moore said the relationship was nothing more than a PR stunt, calling Porsha the athlete's "beard."